A Decatur man was charged Saturday with shooting a man in the chest at a birthday party at a Lanier Islands lake house in Buford, authorities said. Andrew Demetri Joyce, 23, is charged with aggravated assault and aggravated battery in connection to an alleged fight Aug. 16 at Lanier Islands, where Malik Davis, 23, of Union City was shot. The Hall County Sheriff’s Office previously told The Times that friends from metro Atlanta rented a lake house for a birthday party.